3 years ago

A number cube numbered 1-6 is rolled 30 times and lands on an even number 18 times. How

Mathematics

1 answer:

nekit [7.7K]3 years ago

7 0

Answer:

The frequency is 3 more than expected.

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alan has 12-half pound chocolate bars. it take 1.5 of chocolate, broken into chunks to make a batch of cookies. how many batches

cluponka [151]

$12 \div 1.5 = 8$

3 0

2 years ago

Read 2 more answers

12q - 6 + 7 - 3q + q

s344n2d4d5 [400]

Answer:

10q - 1

Step-by-step explanation:

3 0

3 years ago

Decide whether you would use a permutation, a combination, or neither. Next, write the solution using permutation notation or co

Zepler [3.9K]

Answer:

Permutation is used.

No. of arrangements = 1260

Step-by-step explanation:

Permutation is used for choosing & arrangement of 'r' out of 'n' objects, when sequence is important.

Total no. of alphabets in CORRECT = 7

C is repeated twice, R is repeated twice

So, Total No. of arrangements = <u>7 !</u>

(2!)(2!)

= 5040 / 4

= 1260

5 0

3 years ago

Claire is painting some doors that are all the same size. She used 2 liters of paint to cobe 1 3/5 doors. How many liters of pai

Deffense [45]

Answer:

$1 \dfrac{1}{4} \ liters$

Step-by-step explanation:

Given that:

Claire uses 2 liters of paint to cover 1 3/5 doors

Then in order for her to paint 1 door, She will need:

2 L = 1 3/5 door

x L = 1 door

$x (L) = \dfrac{2 L \times 1 door }{ 1 \dfrac{3}{5} \ door}$

$x (L) = \dfrac{2 L }{ 1 \dfrac{3}{5} }$

$x (L) = \dfrac{2 L }{ \dfrac{8}{5} }$

$x (L) = \dfrac{2 L\times 5 }{ 8 }$

$x (L) = \dfrac{10 \ L }{ 8 }$

$x(L) =1 \dfrac{1}{4} \ L$

4 0

2 years ago

Can anyone answer this question please<br> 6[y-2]/7-12=2[y-7]/3

Kaylis [27]

Answer:

y =47.5.

Step-by-step explanation:

First eliminate the fractions by multiplying through by the LCM of 7 and 3 which is 21:

21* 6[y-2]/7-21*12 = 21*2[y-7]/3

18(y - 2) - 252 = 14(y - 7)

18y -36 - 252 = 14y - 98

18y - 14y = -98 + 36 + 252

4y = 190

y = 190/4

y = 47.5.

8 0

2 years ago